#524 – All Types Within a Namespace Must Be Unique

You can create more than one type with the same name, as long as the exist in different namespaces.  But within a particular namespace, the name of every type must be unique.

In the example below, we declare a Dog class in both the EarthDogs and AlienDogs namespaces.

namespace EarthDogs
{
    public class Dog
    {
        public string Name { get; set; }

        public void Bark()
        {
            Console.WriteLine("Woooof");
        }
    }
}

namespace AlienDogs
{
    public class Dog
    {
        public string Name { get; set; }

        public void Bark()
        {
            Console.WriteLine("Snarkzuggrootzen");
        }
    }
}

(In practice, for these classes, you’d probably instead declare a Dog parent class and subclasses EarthDog and AlienDog, which would override the Bark method).

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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

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